EXH0349021155

RE: Commems on SeaTac Stormwater Master Plan Dear Mr. Hellwig, The following review of themost recent version of the Stormwater Master Plan for SeaTac Airport comes to you at the request of the Airport CommunitiesCoalition. This review is oriented to water quality considerations. I have had less than a week to make a review of an incomplete copy of the Plan. I am thus not in a position to say that my comments are eomptete and would not expand on further analysis. have referred to the following documents in the course of this review: Preliminary Comprehensive Stormwater Management Plan, Seattle Tacoma International Airport Master Plan Update Improvements. Prepared for the Port of Seattle by Parametrix, Inc. August 2000; Sections 1, 2, 4 (,part),and 7; Appendices E, F, H, I, M, N, T, U, V. Hereinafter cited as "the Plan." NPDES Permit No. WA-002465-I, dated January 25, 1999, and its appurtenant Fact Sheet. Des Moines Creek Basin Plan, November 1997 King County Surface Water Design Manual, September 1998 National Pollutant Discharge Elimination System Discharge Monitoring Reports for SeaTae Airport, Port of Seattle, Permit no. WA-002465-I, The foiIowing section is a summary of my analysis: A recurring theme in the Plan is that pollution problems will be dealt with by diverting the flow from the stormwater systemto the indus_al waste system, This ineffecrdiverts it from the Des Moines and Miller Creek basins, through the Renton treatment plant discharge, to. Puget Sound. This hydrologic redefinition of the SeaTac area watersheds has the effect…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]